Device for facilitating the removal of valves



P. BORDEAUX.

DEVICE FOR FACILITATING THE REMOVAL OF VALVES. APPLICATION FILED JAN. 27. I919.

1,334,131. Patented Mar. 16, 1920.

PEARL BOBDEAUX, 0F MOUNT DESERT, MAINE.

DEVICE FOR FACILITATIN THE REMOVAL OF VALVES.

Specification of Letters Patent. Patented B131. 16, 1920.

Application filed January 27, 1919. Serial No. 273,360.,

1 0 aZZ whom it may concern:

Be known that I, PEARL BoRonAUx, a citizen of the United States, and a resident of Mount Desert, in the county of Hancock and State of Maine, have invented certain new and useful Improvements in Devices for Facilitating the Removal of Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements 1n devices for facilitating the removal of valves-the object of the invention being to provide an efiicient tool whereby the valve spring may be compressed and the easy removal of the spring-retaining pm permitted prior to the removal of the valve and its cage.

With this object in view, the inventlon consists in certain novel features of constl'uction and combinations of parts as hereinafter set forth and pointed out in the claims. 7

In the accompanying drawings, Figure 1 is a view showing the application of my 1n vention; Fig. 2 is an elevation reverse to that shown in Fig. 1; Fig. 3 is a longitudinal sectional view; Fig. 4 is a transverse section on the line 44 of Fig. 1, and Fig. 5 1s a detail view of the slide 5 and movable jaw 7.

1 represents a metal block provided at one end with a jaw 2 having a recess 3 in its inner face. The block 1 is recessed and provided with overhanging flanges 4 to form guides for a slide 5. the latter having flanges 6 to move under the flanges 4. The slide 5 is formed with a jaw 7 to cooperate with the jaw 2 and form a clamp. The jaw 7 is made with a recess 8 in its inner face which cooperates with the recess 3 of the jaw 2 to receive the stem of a valve. A thumb screw 9 passes through and is swiveled to the jaw 7 and enters a threaded socket 10 in the jaw 2 or in the block 1 rearwardly of the jaw 2 for the purpose of moving the slide 5 and its jaw 7 to clamp the jaws on the valve stem or removing the device from the latter.

A bar 11 having a slot 12, is mounted to slide on the block 1 and is guided in its movements by a flanged lug 13 made rigid with the block 1. The slotted bar 11 is of sufficient length to extend beyond both ends of the block 1 and beyond the j aws 2'-7, and at its lower end, said bar is provided with two lateral fingers or jaws 14 between which the jaws 27 may move.

The upper end of the bar 11 is provided with a lateral arm 15 which projects over the upper end of the block 1 and in this arm a thumb nut 16 is swiveled. A screw 17, made rigid with the block 1 and projecting upwardly therefrom is threaded through the thumb nut 16, so that when the latter is turned, the bar 11 will be moved relatively to the block 1.

In the operation of the device, the same is placed over the valve stem 18 and the jaws :27 clamped thereto, the fingers or jaws 14 resting on the disk 19 against which the valve spring 20 bears. The operator will now turn the thumb nut 16 to cause the bar 11 to move downwardly thus causing the dish 19 to move awav from the spring-retalmng pin 21 and the valve spring 20 to be compressed. The operator may now easily remove the spring-retaining pin 21 and after detaching the device from the valve stem, the disk 19 and valve spring 20 may be removed.

The valve, its stem and cage may now be withdrawn with the use of another tool.

Slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope and hence I do not wish to restrict myself to the precise details herein set forth except as required by the scope of the claims.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent. is:

1. In a device of the character described, the combination with a block provided at one end with clamping jaws for engaging the stem of a valve, of a bar mounted on said block and havingmeans at its end adjacent to said jaws for engaging the abutment of the valve spring, and means for moving said bar relatively to said block and the jaws carried by the latter for compressing the said spring.

2. In a device of the character described, the combination with a block and clamping aws at one end thereof for engaging stem of a valve. of a bar mounted to slide on said block and having fingers at one end receiving said jaws between them, the said fingers to engage the abutment on the valve stem against which the valve spring bears, and

means for moving said bar and its fingers in a direction to compress the said spring.

3. In a device of the character described, the combination with a block provided at one end with a fixed jaw, a slide mounted on said bar, spaced fingers at one end of said bar receiving said jaws between them, a lateral arm at the other end of said bar, a nut swiveled to said lateral arm, and a screw rigid with the block and passing through said swiveled nut.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

PEARL BORDEAUX. Witnesses M. L. ALLEN, v E. A. Honon'oN. 

